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Use mods to define windows, not chain methods
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| package wm | ||
|
|
||
| import ( | ||
| "context" | ||
| "io" | ||
|
|
||
| "github.com/stephenafamo/bob" | ||
| "github.com/stephenafamo/bob/clause" | ||
| "github.com/stephenafamo/bob/dialect/mysql/dialect" | ||
| ) | ||
|
|
||
| func BasedOn(name string) bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.SetBasedOn(name) | ||
| }) | ||
| } | ||
|
|
||
| func PartitionBy(condition any) bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.AddPartitionBy(condition) | ||
| }) | ||
| } | ||
|
|
||
| func OrderBy(e any) dialect.OrderBy[*clause.Window] { | ||
| return dialect.OrderBy[*clause.Window](func() clause.OrderDef { | ||
| return clause.OrderDef{ | ||
| Expression: e, | ||
| } | ||
| }) | ||
| } | ||
|
|
||
| func Range() bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.SetMode("RANGE") | ||
| }) | ||
| } | ||
|
|
||
| func Rows() bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.SetMode("ROWS") | ||
| }) | ||
| } | ||
|
|
||
| func FromUnboundedPreceding() bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.SetStart("UNBOUNDED PRECEDING") | ||
| }) | ||
| } | ||
|
|
||
| func FromPreceding(exp any) bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.SetStart(bob.ExpressionFunc( | ||
| func(ctx context.Context, w io.Writer, d bob.Dialect, start int) ([]any, error) { | ||
| return bob.ExpressIf(ctx, w, d, start, exp, true, "", " PRECEDING") | ||
| }), | ||
| ) | ||
| }) | ||
| } | ||
|
|
||
| func FromCurrentRow() bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.SetStart("CURRENT ROW") | ||
| }) | ||
| } | ||
|
|
||
| func FromFollowing(exp any) bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.SetStart(bob.ExpressionFunc( | ||
| func(ctx context.Context, w io.Writer, d bob.Dialect, start int) ([]any, error) { | ||
| return bob.ExpressIf(ctx, w, d, start, exp, true, "", " FOLLOWING") | ||
| }), | ||
| ) | ||
| }) | ||
| } | ||
|
|
||
| func ToPreceding(exp any) bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.SetEnd(bob.ExpressionFunc( | ||
| func(ctx context.Context, w io.Writer, d bob.Dialect, start int) ([]any, error) { | ||
| return bob.ExpressIf(ctx, w, d, start, exp, true, "", " PRECEDING") | ||
| }), | ||
| ) | ||
| }) | ||
| } | ||
|
|
||
| func ToCurrentRow() bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.SetEnd("CURRENT ROW") | ||
| }) | ||
| } | ||
|
|
||
| func ToFollowing(exp any) bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.SetEnd(bob.ExpressionFunc( | ||
| func(ctx context.Context, w io.Writer, d bob.Dialect, start int) ([]any, error) { | ||
| return bob.ExpressIf(ctx, w, d, start, exp, true, "", " FOLLOWING") | ||
| }), | ||
| ) | ||
| }) | ||
| } | ||
|
|
||
| func ToUnboundedFollowing() bob.Mod[*clause.Window] { | ||
| return bob.ModFunc[*clause.Window](func(w *clause.Window) { | ||
| w.SetEnd("UNBOUNDED FOLLOWING") | ||
| }) | ||
| } |
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